
Wi-Fi&BT Module Series
AF50T Hardware Design
AF50T_Hardware_Design 26 / 52
These two pins are only used for AF50T + third-part host application. For AF50T + AG55xQ series
application, they are not needed.
Table 11: Pin Definition of HOST_WAKEUP_BT and BT_WAKEUP_HOST
Pin Name
Pin No.
I/O
Description
Comment
HOST_WAKEUP_BT
23
DI
Host wakes up BT
1.8 V power domain.
Under development.
BT_WAKEUP_HOST
22
DO
BT wakes up the host
1.8 V power domain.
Under development.
“*” means under development.
3.8. Coexistence Interfaces
3.8.1.
UART Coexistence Interface
The following table shows the pin definition of UART coexistence interface.
Table 12: Pin Definition of UART Coexistence Interface
Pin Name
Pin No.
I/O
Description
Comment
COEX_TXD
59
DO
LTE/WLAN & BT coexistence transmit
If unused, keep this pin
open.
COEX_RXD
16
DI
LTE/WLAN & BT coexistence receive
If unused, keep this pin
open.
The module supports LTE & WLAN coexistence and LTE & BT coexistence. The following figure shows
the UART coexistence interface connection between AF50T and AG55xQ series modules.
Figure 11: UART Coexistence Interface Connection
NOTE